National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

28°F

-2°C

Humidity 44%
Wind Speed W 6 mph
Barometer 29.99 in (1015.8 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 16 Jan 6:56 pm EST
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Increasing clouds, with a low around 26. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 23 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A slight chance of rain after 2pm. Mostly cloudy, with a high near 45. South wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 45 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain before 7pm. Mostly cloudy, with a low around 31. Southwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: A chance of snow before 10am, then rain likely between 10am and 2pm, then snow likely after 2pm. Cloudy, with a high near 39. Calm wind becoming southwest around 6 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 39 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 24. Calm wind becoming northwest around 6 mph in the evening. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 24 °F

    Snow Likely
    then Chance
    Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 34. Southwest wind 6 to 13 mph, with gusts as high as 25 mph.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16. West wind around 10 mph, with gusts as high as 28 mph.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 24. West wind around 11 mph, with gusts as high as 25 mph.

    High: 24 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 13. West wind around 9 mph, with gusts as high as 24 mph.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 26. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 23 mph.
Saturday
A slight chance of rain after 2pm. Mostly cloudy, with a high near 45. South wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Saturday Night
A chance of rain before 7pm. Mostly cloudy, with a low around 31. Southwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Sunday
A chance of snow before 10am, then rain likely between 10am and 2pm, then snow likely after 2pm. Cloudy, with a high near 39. Calm wind becoming southwest around 6 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 24. Calm wind becoming northwest around 6 mph in the evening. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
M.L.King Day
Mostly sunny, with a high near 34. Southwest wind 6 to 13 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 16. West wind around 10 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 24. West wind around 11 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 13. West wind around 9 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 34. Southwest wind 8 to 10 mph, with gusts as high as 22 mph.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 23. Southwest wind around 7 mph. Chance of precipitation is 30%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 38. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 21. Northwest wind around 7 mph. Chance of precipitation is 30%.
Friday
A chance of snow showers. Partly sunny, with a high near 32. Northwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
3:43 pm EST Jan 16, 2026
Forecast Valid:
7pm EST Jan 16, 2026-6pm EST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation